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Nuclear Export of Viral RNAs -

Nuclear Export of Viral RNAs

J. Hauber, P.K. Vogt (Herausgeber)

Buch | Hardcover
IX, 134 Seiten
2001 | 2001
Springer Berlin (Verlag)
978-3-540-41278-6 (ISBN)
CHF 149,75 inkl. MwSt
In eukaryotic cells, the nuclear genome and its transcriptional apparatus is separated from the site of protein synthesis by the nuclear envelope. Thus, a constant flow of proteins and nucleic acids has to cross the nuclear envelope in both directions. This transport in and out of the nucleus is mediated by nuclear pore complexes (NPCs) and occurs in an energy and signal-dependent manner. Thus, nucleocytoplasmic translocation of macro molecules across the nuclear envelope appears to be a highly specific and regulated process. Viruses that replicate their genome in the cell nucleus are therefore forced to develop efficient ways to deal with the intracellulZlr host cell transport machinery. Historically, investigation of Polyomavirus replication allowed identification ofsequences that mediate nuclear import, which led subsequently to our detailed understanding of the cellular factors that are involved in nuclear import. Transport ofmacromolecules in the opposite direction, however, is less well understood. The investigation of retroviral gene expression in recent years pro vided the first insights into the cellular mechanisms that regulate nuclear export. In particular, the detailed dissection of the function of the human immunodeficiency virus type I (HIV-I) Rev trans-activator protein identified CRMI, as a hona fide nuclear export receptor. CRM I appears to be involved in the nucleocytoplasmic translocation of the vast majority of viral and cellular proteins that have subsequently been found to contain a Rev-type leucine-rich nuclear export signal (NES).

The authors deal with the regulation of nuclear export of viral RNAs. This is the first ever edition on this topic.

Nuclear Export of Herpes Virus RNA.- Nuclear Export of Adenovirus RNA.- Nuclear Export Mediated by the Rev/Rex Class of Retroviral Trans-activator Proteins.- Constitutive Transport Element-Mediated Nuclear Export.- Nuclear Pore Complex Architecture and Functional Dynamics.- Methods and Assays to Investigate Nuclear Export.

Erscheint lt. Verlag 27.3.2001
Reihe/Serie Current Topics in Microbiology and Immunology
Zusatzinfo IX, 134 p.
Verlagsort Berlin
Sprache englisch
Maße 155 x 235 mm
Gewicht 860 g
Themenwelt Medizin / Pharmazie Medizinische Fachgebiete Mikrobiologie / Infektologie / Reisemedizin
Naturwissenschaften Biologie Mikrobiologie / Immunologie
Schlagworte Activation • Cytoplasm • Herpes virus • nuclear export • nucleocytoplasmic transport • Protein • proteins • RNA • viral regulatory proteins • viral trans-activation • Virus
ISBN-10 3-540-41278-6 / 3540412786
ISBN-13 978-3-540-41278-6 / 9783540412786
Zustand Neuware
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